CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

AP = 5 , 2 , -1 , -4 .....

Here , First term (A) = 5 and Common Difference = 2-5 = -3

A_n = A + (N-1) × D
A_n = 5 + ( N -1) × -3
A_n = 5 - 3N +3
A_n= 8+3N

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Deepank Khare 6 years, 3 months ago

Give me my answer

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In obejective type mcq will be ask

Posted by Rina Kumari 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Rani Mishra ??? 6 years, 3 months ago

Yes

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Solve the following pair of linear equations ax+by=c bx+ay=1+c

Posted by King Cobra 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Yogita Ingle 6 years, 3 months ago

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ANSWER

Is there two levels for class 10 math? Easy and hard

Posted by Parveen Dalal 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

????? ?????? 6 years, 3 months ago

Ya maths is divided into to categories standard and basic.if want to take maths in 11 then choose standard other wise choose basic

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difference between advance and basic math

Posted by Niraj Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

3 answers

Rani Mishra ??? 6 years, 3 months ago

Will necrt questions would be asked in the board exam

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Unnati Dabasi 6 years, 3 months ago

I want to continue with it but aftet exam your decision changes that i want to study maths then while the exam of compartment give the exam of standard

1Thank You

Priyanshu Kumar 6 years, 3 months ago

In Advance math paper come hard in board exam and. In class 11 you take math subject but basicmath are diff.. In this paper are come easy in. Exam and you not take math..in.11.

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prove that cot A +tan A=secAcosecA

Posted by Vinay Kashyap 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Vinay Kashyap 6 years, 3 months ago

thank you

1Thank You

Shruti Aggarwal 6 years, 3 months ago

LHS :cosA/sinA + sinA/cosA = (cos^2A + sin^2A) /sinA. CosA=1/sinA.cisA Now RHS:(1/cosA)(1/sinA)=1/sinA.cosA

3Thank You

ANSWER

Find the area of a rhombus if its vertices are (3,0)(4,5)(-1,4)(-2,-1) taken in order

Posted by Prerna Bhati 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Khushi ?? 6 years, 3 months ago

First divide the rhombus using diagonals and then using coordinates find area of both triangle and then add themm

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If angle A and angle P are acute angles such that tanA = tanP .then show that angle A = angle P

Posted by Aditya Raj 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

2.3×35566÷466

Posted by Rajit Kumar Yadav 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Circle best questions for class10

Posted by Yash Tiwari 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

SinQ=?

Posted by Rishu Singh 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Ronak Choudhary 6 years, 3 months ago

Perpendicular\ hypotenuse

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Mehjabeen Khan 6 years, 3 months ago

Cosec

1Thank You

ANSWER

Find the rationale number between 3/5and 4/5

Posted by Vishal Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

4 answers

Mehjabeen Khan 6 years, 3 months ago

Answer Kya hoga

0Thank You

Mehjabeen Khan 6 years, 3 months ago

7/10

0Thank You

Mehjabeen Khan 6 years, 3 months ago

7/5

0Thank You

Arvind Singh 6 years, 3 months ago

10/15,11/15and many more

2Thank You

ANSWER

What is the main difference between congruent and similar triangle

Posted by Pragya Parimita Bhoi 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Yash Tiwari 6 years, 3 months ago

in congruent triangle areas are also equal but in similar triangle area are not equal

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ANSWER

If x=a sin and y=b tan then prove that a square upon x square minus b square upon y square =1

Posted by Afifah Saad 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

36 multiply t ki power minus 7 upon 6 minus 3 multiply 12 multiply 10 ki power 0 - 10 where t is not equal 0

Posted by Chirag Khandelwal 6 years, 3 months ago

CBSE > Class 10 > Mathematics

0 answers

ANSWER

Example 15 of trignometry 8.3

Posted by Naman Keshari 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Sourav Sharma 6 years, 3 months ago

It is from ncert or rd sharma or from where

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ANSWER

What is trangle

Posted by Pranav Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

2 answers

Aadya Singh 6 years, 3 months ago

Traingle is a closed figures made up of three line segments.

3Thank You

Sourav Sharma 6 years, 3 months ago

Triangle is a closed figure formed by adjoining the three sides

2Thank You

ANSWER

Difference Between basic and advanced mathematics

Posted by Mayank Kumar 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 3 months ago

Mathematics – Standard: For the existing level of examination.

Mathematics – Basic: For the easier level of examination

The Standard level will be meant for students who wish to opt for Mathematics at Senior Secondary level and the Basic level would be for students not keen to pursue Mathematics at higher levels.

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From the top of a 7 m high building, the angle of elevation of the top of a cable tower is 60 degree and the angle of depession of its foot is 45 degree.Determine the height of the tower

Posted by Amandeep Poonia 6 years, 3 months ago

CBSE > Class 10 > Mathematics

1 answers

Gaurav Seth 6 years, 3 months ago

Answer

Let AB be the building of height 7 m and EC be the height of tower.
A is the point from where elevation of tower is 60° and the angle of depression of its foot is 45°
EC = DE + CD
also, CD = AB = 7 m.
and BC = AD
A/q,
In right ΔABC,
tan 45° = AB/BC
⇒ 1= 7/BC
⇒ BC = 7 m = AD
also,
In right ΔADE,
tan 60° = DE/AD
⇒ √3 = DE/7
⇒ DE = 7√3 m
Height of the tower = EC = DE + CD
= (7√3 + 7) m = 7(√3+1) m.